Note: Local government receipts and outlays for highway are
not included in 2009.

The rows under
Own- source Revenue for each mode represent that modes Own-Source Revenue as
a percent of Own-Source and Supporting Revenue for all modes. The rows under
Supporting Revenue for each mode represent that modes Supporting Revenue as
a percent of Own-Source and Supporting Revenue for all modes.

Sources:
Executive Office of the President of the United States, Office of Management and Budget (OMB), "Budget of the United States Government:
Public Budget Database," Washington, D.C., available at http://www.whitehouse.gov/omb/ as of February 2012.
Executive Office of the President of the United States, Office of Management and Budget (OMB), "Budget of the United States Government:
Appendix," Washington, D.C., available at
http://www.gpoaccess.gov/usbudget/browse.html as of February 2012.

U.S. Environmental Protection Agency, U.S. Environmental Protection
Agency's Performance and Accountability Report, "Principal Financial
Statements, " available at http://www.epa.gov/ocfo/par/index.htm as of February 2012.
U.S. Department of Transportation (USDOT), Federal Aviation Administration
(FAA), "Airport Financial Report," Form 127, available at
http://cats.airports.faa.gov/ as of February 2012.